GB2208593A - Seat slide device - Google Patents
Seat slide device Download PDFInfo
- Publication number
- GB2208593A GB2208593A GB8815217A GB8815217A GB2208593A GB 2208593 A GB2208593 A GB 2208593A GB 8815217 A GB8815217 A GB 8815217A GB 8815217 A GB8815217 A GB 8815217A GB 2208593 A GB2208593 A GB 2208593A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rail
- slide device
- seat slide
- stationary
- movable rail
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/08—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable characterised by the locking device
- B60N2/0812—Location of the latch
- B60N2/0825—Location of the latch outside the rail
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/07—Slide construction
- B60N2/0702—Slide construction characterised by its cross-section
- B60N2/071—T-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/07—Slide construction
- B60N2/0702—Slide construction characterised by its cross-section
- B60N2/0715—C or U-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/08—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable characterised by the locking device
- B60N2/0831—Movement of the latch
- B60N2/0837—Movement of the latch pivoting
- B60N2/0843—Movement of the latch pivoting about a longitudinal axis
Description
--1-- SEAT SLIDE DEVICE 2208593 The present invention relates to a seat
slide device for a motor vehicle,, which can. slide a seat to a desired position and may lock it at the desired position. More specifically, the present invention relates to a seat slide device which is equipped with a rail-coupling reinforcing structure for protecting the seat slide device from damage even when the same is subjected to an abnormally big shock. due to a vehicle collision or the like.
Most of the seat slide devices hitherto proposed are of a type which comprises two stationary rails mounted on a vehicle floor, two movable rails slidably carried on the stationary rails and mounting thereon a seatt and a position locking mechanism for locking the movable rails -at a desired position relative to the stationary rails. For increasing the mechanical strength, some of them are equipped with a so-called "railcoupling reinforcing structure" which is designed to assure the functional connection between the stationary and movable rails which are coupled. Thust the seat slide devices equipped with the rail-coupling reinforcing structure can exhibit a considerable resistance against a big shock applied thereto due to a vehicle collision or the like. One of the seat slide devices of this type is disclosed in Japanese Patent First Provisional Publication No. 59-134031.
The rail-coupling reinforcing structure --2-- disclosed by the Publication comprises an elongate plate which extends along one of the stationary rails and is secured thereto. The plate has mounting lugs secured to the vehicle floor and has at its upper end a folded-back channel portion which extends therealong. A generally L-shaped holding bracket is secured to the corresponding movable rail and slidably interconnected with an edge of the channel portion of the elongate plate. Whent due to a vehicle collision or the like, the movable rail is subjected to an abnormally big shock in a direction away from the stationary rail, the L-shaped holding bracket becomestightly engaged with the edge of the channel portion.thereby suppressing disengagement between the coupled two rails.
However, due to its inherency in constructiont the rail-coupling reinforcing structure has caused a bulky and heavy construction of the seat slide device to which the reinforcing structure is practically applied. As is known, the bulky and heavy construction brings about not only poor space saving of the vehicle cabin but also deterioration in fuel consumption of the motor vehicle.
What is desired is a seat slide device with a rail-couplil--ng reinforcing structure which is compact in size and light in weight.
According to the present inventionp there is provided a seat slide device which comprises a stationary rail to be mounted on a fixed member; a movable rail slidable on and along the stationary rail while keeping an interlocking engagement with 1 ti the stationary rail, the movable rail being adapted to mount a seat and slidable to a given position wherein a longitudinal end portion of the movable rail is projected considerably from a corresponding end of the stationary rail; a leg member having one end secured to the corresponding end of the stationary rail and the other end securable to the fixed member; and a structure defined by the leg memberr the structure having a projected portion which is placed above the longitudinal end portion of the movable rail when the movable rail comes to the given position.
Preferred features and advantages of the present invention will become apparent from the following description when taken in conjunction with the accompanying drawings, in which:
Fig. 1 is a perspective view of a seat slide device which is a first embodiment of the present invention; Fig. 2 is a view taken from the direction of the arrow II of Fig. 1; - Fig. 3 is a plan view of the seat slide device; Fig. 4 is a sectional view taken along the line W-W of Fig. 2; Fig. 5 is a partial perspective view of a seat slide device which is a second embodiment of the present invention; Fig. 6 is a sectional view taken along the line VI-VI of Fig. 5; Fig. 7 is a partial perspective view of a seat slide device which is a third embodiment of the present invention; and --4-- Fig. 8 is a sectional view taken along the line VIII-VIII of Fig. 7.
In the following, embodiments of the present invention will be described in detail with reference to the accompanying drawings in which like parts and constructions are denoted by the same numerals.
Referring to Figs. 1 to 4, there is shown a seat slide device of a first embodiment of the present invention.
The device of this embodiment comprises two elongate unitsonly one 10 of which is illustrated in the drawings because the units are substantially the same in construction. These elongate units 10 are arranged on a vehicle floor (not shown) and extend in parallel along a longitudinal axis of the vehicle.
Each elongate unit 10 comprises a stationary rail 20 fixed to the vehicle floor, a movable rail 30 slidably carried on the stationary rail 20 and mounting thereon a seat (not shown), and a slider mechanism interposed between the two rails 20 and 30 to smoothly move the movable rail 30 on the stationary rail 20. As will be described in detail hereinafter, the slider mechanism comprises roller bearings 11 and ball bearings 12. Each unit 10 further comprises a lock mechanism 40 and front and rear leg members 50a and 50b which will be also described in detail hereinafter.
As is seen from Figs. 1 and 4, the stationary rail 20 is of a channel member which comprises a bottom wall 21, opposed side walls 22t upper walls 23 defining therebetween an axially extending slot, and flanges 24 inwardly projected from the upper walls 23 1 toward the bottom wall 21. As is seen from Fig. 2, one of the side walls 22 is formed with a plurality of notches 25.
The movable rail 30 comprises two identical rail pieces 31 each having a generally L-shaped cross section. As is seen from Fig. 4, these rail pieces 31 are connected to each other in a back-to-back manner. That isp each rail piece 31 comprises a major base part 32, a lower wall 33 and a flange 34 upwardly projected from the lower wall 33. Thusr when connectedr they constitute a unit having a generally T-shaped cross section.
As is understood from Fig. 4f the movable rail 30 is engaged with the stationary rail 20 in such a manner that the lower walls 33 and the flanges 34 of the movable rail 30 are received in the stationary rail 20. As is seen from Figs. 2 and 4r roller bearings 11 are interposed between the bottom wall 21 of the stationary rail 20 and the lower walls 33 of the movable rail 30. As is seen from Figs. 3 and 4, ball bearings 12 are received in respective clearances each being defined by the upper wall 23 of the stationary rail 20 and the flange 24 of the same and the lower wall 33 of the movable rail 30 and the flange 34 of the same.
The lock mechanism 40 comprises a base bracket 41 which is secured by rivets 35 to the movable rail 30 to move therewith. As is well seen from Figs. 3 and 4g the base bracket 41 is formed with two spaced curled edge portions 42 which constitute aligned bores (no numeral) through which an operation shaft 43 is inserted in a manner to rotate about the axis thereof. As is seen from Figs. 2 and 3r the operation shaft 43 has at its foward end a lever 44 secured thereto. Designated by numeral 45 is a supporter which is secured to the movable rail 30 to pivotally support a forward end portion of the operation shaft 43. Although not shown in the drawing, a wire extends from the lever 44 to a control lever (not shown) which is pivotally connected to a movable rail of the other elongate unit (not shown). A latch plate 46 with two latch pawls 46a is secured to the operation shaft 43 at position between the two curled edge portions 42 of the base bracket 41. The latch pawls 46a are shaped and sized to be latchingly and selectively engageable with the notches 25 of the stationary rail 20. When the control lever mounted on the other elongate unit is pivoted in a direction to pull the wire, the lever 44 and thus the operation shaft 43 are rotated in a direction to disengage the latch pawls 46a of the latch plate 46 from the notches 25 of the stationary rail 20. As is seen from Fig. 3, a coil spring 47 is disposed about a rearward end portion of the operation shaft 43 to bias the same in a direction to achieve the latching engagement between the latch plate 46 and the notches 25.
As is best understood from Fig. 1, the front leg member 50a is arranged to support the front portion of the stationary rail 20 on the vehicle floor. That isr the leg member 50acomprises an upper flat portion (no numeral) welded to the bottom wall 21 of the stationary rail 20 and a stand portion Sla extending obliquely downward from the upper flat portion to the vehicle floor. Although not shownt a bolt or the like is used for detachably connecting the stand 1 portion Sla to the vehicle floor.
The rear leg member 50b is arranged to support the rear portion of the stationary rail 20 on the vehicle floor. The leg member 50b comprises _ generally a rectangular portion 51 welded to the stationary rail 20 and a circular base portion 55 which is to be bolted to the vehicle floor. AS is seen from Fig. Ir the rectangular portion 51 extends rearward from the rear end of the stationary rail 20. The leg member 50b is formed with a flange 52 which extends entirely along the periphery thereof. As is best understood from Fig. 4. the rectangular portion 51 is formed with a catching portion (no numeral) which grasps the stationary rail 20. As is seen from Fig. 1, the rectangular portion 51 has at its rear upper part a lug 53 below which one of the flanges 34 of the movable rail 30 extends when the rail 30 is slided rearward to assume its rear position relative to the stationary rail 20. The circular base portion 55 is integrally connected to the rectangular portion 51 through an obliquely extending intermediate portion (no numeral). The circular base portion 55 is formed at its mounting part 56 with a circular opening 56a through which a connecting bolt (not shown) is to be passed.
In the following# operation of the seat slide device 10 of the first embodiment will be described.
For ease of understanding, the description will be commenced with respect to a condition wherein the movable rail 30 is locked at a desired position relative to the stationary rail 20. Under this conditiont the latch pawls 46a of the latch plate 46 are in latching engagement with selected two of the --8-- notches 25 of the stationary rail 20, so that the movable rail 30 and thus the seat mounted thereon can not move.
When now the control lever mounted on the other elongate unit (not shown) is manipulated to pivot in a given direction, the operation shaft 43 is rotated against the biasing force of the coil spring 47 in a direction to disengage the latch pawls 46a of the latch plate 46 from the selected notches 25 of the stationary rail 20. Thus, thereafter, the movable -rail 30 is movable forward and rearward relative to the stationary rail 20. Thus, with the control lever (not shown) kept pushed, the movable rail 30 and thus the seat can be slid- to a desired new position.
When the seat comes to the new positionr the control lever is released. With thisr the latch pawls 46a of the latch plate 46 are brought into latching engagement with new two of the notches 25 of the stationary rail 20. When the latch pawls 46a fail to make engagement with the notches 25, the seat is slid slightly forward or rearward. With thist the latching engagement is achieved. Thus, the seat is locked at the new position.
Whens, as is seen from Fig. 1, the seat comes to its rear end, the rear portion of the movable rail 30 is considerably projected from the stationary rail 20. Under this condition, the lug 53 of the leg member 50b extends over the flange 34 of the movable rail 30. It is thus to be noted that whenp due to a vehicle collision or the like, the rear portion of the movable rail 30 is applied with a big force in a direction away from the stationary rail 20? the upward movement of the rear portion of the movable W 11 i V rail is suppressed by the lug 53. Thus. the dangerous disengagement of the movable rail 30 from the stationary rail 20 is prevented.
It is to be noted that when the seat assumes its foremost positionr the movable rail 30 is substantially entirely engaged with the stationary rail 20. In this condition, the coupling between the two rails 20 and 30 is assuredly made.
Referring to Figs. 5 and 6r there is shown a second embodiment of the present invention. As shownr the rear leg member 50b employed in this embodiment is formed with a lug 53 the leading end of -which is bent downward to form a flange 53a. As is understood from Fig. 6r due to the provision of the flange 53a, the disengagment of the movable rail 30 from the stationary rail 20 is more assuredly prevented. That is, upon the vehicle collision. the flange 34 of the movable rail 30 becomes interlocked with the flange 53a of the lug 53 thereby suppressing the disengagement of the two rails 20 and 30.
Referring to Figs. 7 and 8. there is shown a third embodiment of the present invention. The rear leg member 50b employed in this embodiment comprises a rectangular portion 51 which is welded at the flange 52 to the rear end of the stationary rail 20 (not shown) and a circular base portion 55 which is to be bolted to the vehicle floor. The rectangular portion 51 is formed with a channel portion which comprises an apertured bottom wall (no numeral), opposed side walls (no numerals), upper walls 53 and 54 defining therebetween an axially extending slotr and flanges 53a and 54a inwardly projected from the upper walls 53 and 54. As is seen from Fig. 8, when the movable rail 30 assumes the rear position, the lower walls 33 and the flanges 34 of the movable rail 30 are received in the channel portion of the rear leg member 50b. When, due to a vehicle collision or the liker the movable rail 30 is applied with a big force in a direction away from the stationary rail 20, the upward movement of the rear end portion of the movable rail 30 is much more assuredly suppressed by the robustly constructed channel portion of the leg member 50b. Thust the dangerous disengagement of the movable rail 30 from the staticnary rail 20 is assuredly suppressed.
Although the above description is directed to the embodiments wherein the rectangular portion 51 is integral with the circular base portion 55r the rectangular portion 51 may be a separate member which is welded to the base portion 55.
1 n p 3
Claims (13)
1. A seat slide device comprising:
a stationary rail adapted to be secured to a f ixed member; a movable rail slidable on and along said stationary rail while keeping an interlocking engagement with said stationary railt said movablerail being adapted to mount a seat and slidable to a given position wherein a longitudinal end portion of said movable rail is projected considerably from a corresponding end of the stationary rail; a leg member having one end secured to said corresponding end of said stationary rail and the other end securable to the f ixed member; and a structure defined by said leg member, said structure having a projected portion which is placed above said longitudinal end portion of said movable rail when said movable rail comes to said given position.
2. A seat slide device as claimed in Claim 1, in which said projected portion of said structure is arranged in such a manner that when said longitudinal end portion of said movable rail is moved in a direction away f rom the bottom of said stationary rail, the same is brought into engagement with said projected portion of said structure.
3. A seat slide device as claimed in Claim 1 or 2, in which said stationary rail is of a channel member which comprises a bottom wall, opposed side walls, upper walls defining therebetween an axially extending slott and flanges inwardly projected from ---12--- said upper walls toward said bottom wall, and in which said movable rail is shaped to have a generally T-shaped cross section comprising an axially extending base partr lower walls extending from said base part in opposite directionsr and flanges upwardly projected from said lower walls, wherein said movable rail is engaged with said stationary rail in such a manner that the lower walls of said movable rail and the flanges of the same are received in said stationary rail and face toward the corresponding upper walls and flanges of said stationary rail.
4. A seat slide device as claimed in any preceding claim, in which the movable rail comprises two identical rail pieces each having a generally L-shaped cross section, wherein said identical rail pieces are secured to each other in a back-to-back manner.
5. A seat slide device as claimed in any preceding claim, in which the said structure comprises a lug integrally formed on said leg member, said lug being placed over a flange possessed by said movable rail.
6. 'A seat slide device as claimed in 5, in which a leading end of said lug is bent downward to form a flange which is shaped to slidably interlock with the flange of said movable rail.
7. A seat slide device as claimed in any of claims 1 to 4, in which the said structure comprises a channel member which comprises a bottom wall, opposed side walls, upper walls defining therebetween an axially S 1 0 extending sloti and flanges inwardly projected from said upper walls.
8. A seat slide device as claimed in any preceding claim, including a slider mechanism which is interposed between said stationary and movable rails to smooth the sliding movement of said movable rail relative to said stationary rail.
9. A seat slide device as claimed in Claim 8, in which said slider mechanism comprises roller bearings and ball bearings.
10. A seat slide device as claimed in any - preceding claim, including a lock mechanism which comprises:
a base bracket secured to said movable rail to move therewith; an operation shaft supported by said base bracket in a manner to rotate about its axis; a latch plate secured to said operation shaft to move therewith; and means defining in said stationary rail a plurality of aligned notches to which said latch plate is latchingly engageable.
11. A seat slide device as claimed in Claim 10, in which said operation shaft is biased by a spring in a direction to establish the latching engagement between said latch plate and said notches.
12. A seat slide device substantially as described with reference to, and as shown in, Figures 1 to 4, Figures 5 and 6, or Figures 7 and 8 of the accompanying drawings.
1
13. A vehicle having a seat mounted on a seat slide device according to any preceding claim.
f Published 1988 at 7he Patent OlIffice. State HOI-sc- 66 -1 HIE'Hc!bcrr-. LonA-on VIC 'IF 47y- F",:'!'the!'c0P1ez may be obtanne fro 7 pa rCffc St ary t BR5 3RD- Printed ky Mt2t!plex techniques ltd. M Cray. Xe-t Co 187 Sales Branch, St Mary Cray, Orpington, Ken T- te te e
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987125063U JPH0431141Y2 (en) | 1987-08-17 | 1987-08-17 |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8815217D0 GB8815217D0 (en) | 1988-08-03 |
GB2208593A true GB2208593A (en) | 1989-04-12 |
GB2208593B GB2208593B (en) | 1991-03-06 |
Family
ID=14900902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8815217A Expired - Lifetime GB2208593B (en) | 1987-08-17 | 1988-06-27 | Seat slide device |
Country Status (4)
Country | Link |
---|---|
US (1) | US4821989A (en) |
JP (1) | JPH0431141Y2 (en) |
DE (1) | DE3827007C2 (en) |
GB (1) | GB2208593B (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1283841C (en) * | 1987-12-21 | 1991-05-07 | Richard W.A. Rees | Seat slide structure |
US5083735A (en) * | 1989-06-30 | 1992-01-28 | Fujikiko Kabushiki Kaisha | Vehicle seat |
JPH0623464Y2 (en) * | 1989-11-10 | 1994-06-22 | 株式会社タチエス | Seat slide device |
JPH04252744A (en) * | 1991-01-29 | 1992-09-08 | Oi Seisakusho Co Ltd | Power seat slide device |
US5499788A (en) * | 1993-03-31 | 1996-03-19 | Itt Corporation | Manual seat adjuster |
US5344114A (en) * | 1993-03-31 | 1994-09-06 | Itt Corporation | Vehicle seat adjuster |
JP2888274B2 (en) * | 1995-01-23 | 1999-05-10 | 池田物産株式会社 | Seat slide device |
JP6133146B2 (en) | 2013-06-20 | 2017-05-24 | トヨタ紡織株式会社 | Vehicle seat |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5631839A (en) * | 1979-08-22 | 1981-03-31 | Aisin Seiki Co Ltd | One-step feeding system seat sliding adjuster |
DE3218214A1 (en) * | 1982-05-14 | 1983-11-17 | P.A. Rentrop, Hubbert & Wagner Fahrzeugausstattungen Gmbh & Co Kg, 3060 Stadthagen | SLIDE RAIL GUIDE FOR VEHICLE SEATS |
JPS59134031A (en) * | 1983-01-24 | 1984-08-01 | Ichikoh Ind Ltd | Seat adjuster for belt fitting |
JPS6080935A (en) * | 1983-10-11 | 1985-05-08 | Nissan Motor Co Ltd | Slide locking device for seat |
JPS60199742A (en) * | 1984-03-23 | 1985-10-09 | Fuji Kiko Co Ltd | Seat lifter |
JPS61169731U (en) * | 1985-04-09 | 1986-10-21 | ||
JPH0674019B2 (en) * | 1985-09-20 | 1994-09-21 | アイシン精機株式会社 | Seat slide adjuster for vehicles |
US4669782A (en) * | 1985-09-20 | 1987-06-02 | Toyota Jidosha Kabushiki Kaisha | Belt anchor incorporating seat track structure |
DE3623007A1 (en) * | 1986-07-09 | 1988-01-28 | Keiper Recaro Gmbh Co | Sliding element for pairs of seat rails for vehicle seats |
JPS6331838A (en) * | 1986-07-25 | 1988-02-10 | Oi Seisakusho Co Ltd | Seat slide device |
-
1987
- 1987-08-17 JP JP1987125063U patent/JPH0431141Y2/ja not_active Expired
-
1988
- 1988-06-27 GB GB8815217A patent/GB2208593B/en not_active Expired - Lifetime
- 1988-06-27 US US07/211,701 patent/US4821989A/en not_active Expired - Lifetime
- 1988-08-09 DE DE3827007A patent/DE3827007C2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US4821989A (en) | 1989-04-18 |
DE3827007C2 (en) | 1994-02-10 |
JPH0431141Y2 (en) | 1992-07-27 |
JPS6429037U (en) | 1989-02-21 |
DE3827007A1 (en) | 1989-03-02 |
GB2208593B (en) | 1991-03-06 |
GB8815217D0 (en) | 1988-08-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20000627 |